Description of problem:
When I tried target specific packages and repositories with template where is long Name tag I got
exception and build failed with this error log below. If i modify the Name tag to something like <name>TSPaR_RHEL</name> it passed.  
Error log: 
...truncated...
2012-01-03 05:29:39,103 DEBUG imgfac.builders.BaseBuilder.RHEL6_rhevm_Builder pid(12839) Message: Exception caught in ImageFactory
2012-01-03 05:29:39,108 DEBUG imgfac.builders.BaseBuilder.RHEL6_rhevm_Builder pid(12839) Message: Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/imgfac/builders/Fedora_rhevm_Builder.py", line 65, in build_image
    self.build_uploa    if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self)
libvirtError: internal error Monitor path /var/lib/libvirt/qemu/Target_Specific_Packages_and_Repos_for_RHEL-ecea05aa-7408-453a-902a-05572fa33038.monitor too big for destination
2012-01-03 05:29:39,108 DEBUG imgfac.BuildJob.BuildJob pid(12839) Message: Builder (ecea05aa-7408-453a-902a-05572fa33038) changed status from BUILDING to FAILED
    if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self)
libvirtError: internal error Monitor path /var/lib/libvirt/qemu/Target_Specific_Packages_and_Repos_for_RHEL-ecea05aa-7408-453a-902a-05572fa33038.monitor too big for destination
d(build_id)
  File "/usr/lib/python2.6/site-packages/imgfac/builders/Fedora_rhevm_Builder.py", line 112, in build_upload
    libvirt_xml = guest.install(self.app_config["timeout"])
  File "/usr/lib/python2.6/site-packages/oz/Guest.py", line 1431, in install
    return self._do_install(timeout, force, 0)
  File "/usr/lib/python2.6/site-packages/oz/Guest.py", line 1412, in _do_install
    dom = self.libvirt_conn.createXML(xml, 0)
  File "/usr/lib64/python2.6/site-packages/libvirt.py", line 2087, in createXML
    if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self)
libvirtError: internal error Monitor path /var/lib/libvirt/qemu/Target_Specific_Packages_and_Repos_for_RHEL-ecea05aa-7408-453a-902a-05572fa33038.monitor too big for destination

2012-01-03 05:29:39,108 DEBUG imgfac.BuildJob.BuildJob pid(12839) Message: Builder (ecea05aa-7408-453a-902a-05572fa33038) changed status from BUILDING to FAILED
Exception in thread ecea05aa-7408-453a-902a-05572fa33038.build_image():
Traceback (most recent call last):
  File "/usr/lib64/python2.6/threading.py", line 532, in __bootstrap_inner
    self.run()
  File "/usr/lib64/python2.6/threading.py", line 484, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/lib/python2.6/site-packages/imgfac/builders/BaseBuilder.py", line 126, in __call__
    getattr(self, str().join(args))(**kwargs)
  File "/usr/lib/python2.6/site-packages/imgfac/builders/Fedora_rhevm_Builder.py", line 65, in build_image
    self.build_upload(build_id)
  File "/usr/lib/python2.6/site-packages/imgfac/builders/Fedora_rhevm_Builder.py", line 112, in build_upload
    libvirt_xml = guest.install(self.app_config["timeout"])
  File "/usr/lib/python2.6/site-packages/oz/Guest.py", line 1431, in install
    return self._do_install(timeout, force, 0)
  File "/usr/lib/python2.6/site-packages/oz/Guest.py", line 1412, in _do_install
    dom = self.libvirt_conn.createXML(xml, 0)
  File "/usr/lib64/python2.6/site-packages/libvirt.py", line 2087, in createXML
    if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self)
libvirtError: internal error Monitor path /var/lib/libvirt/qemu/Target_Specific_Packages_and_Repos_for_RHEL-ecea05aa-7408-453a-902a-05572fa33038.monitor too big for destination


Checking if there is any error in the log of image factory
Found FAILED or error message in log file:
    if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self)
libvirtError: internal error Monitor path /var/lib/libvirt/qemu/Target_Specific_Packages_and_Repos_for_RHEL-ecea05aa-7408-453a-902a-05572fa33038.monitor too big for destination
2012-01-03 05:29:39,108 DEBUG imgfac.BuildJob.BuildJob pid(12839) Message: Builder (ecea05aa-7408-453a-902a-05572fa33038) changed status from BUILDING to FAILED
    if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self)
libvirtError: internal error Monitor path /var/lib/libvirt/qemu/Target_Specific_Packages_and_Repos_for_RHEL-ecea05aa-7408-453a-902a-05572fa33038.monitor too big for destination

Version-Release number of selected component (if applicable):
I have tested that on RHEL6.2 and F15
oz-0.7.9-4.el6.noarch
aeolus-conductor-doc-0.8.0-0.20111222174045gitf1e6529.el6.noarch
rubygem-aeolus-image-0.2.0-1.el6.noarch
rubygem-rack-mount-0.7.1-3.aeolus.el6.noarch
rubygem-ZenTest-4.3.3-2.aeolus.el6.noarch
rubygem-aeolus-cli-0.2.0-3.el6.noarch
imagefactory-jeosconf-ec2-rhel-1.0.0rc1-1.el6.noarch
aeolus-conductor-0.8.0-0.20111222174045gitf1e6529.el6.noarch
aeolus-all-0.8.0-0.20111222174045gitf1e6529.el6.noarch
rubygem-arel-2.0.10-0.aeolus.el6.noarch
iwhd-1.1-2.el6.x86_64
imagefactory-jeosconf-ec2-fedora-1.0.0rc1-1.el6.noarch
aeolus-conductor-daemons-0.8.0-0.20111222174045gitf1e6529.el6.noarch
rubygem-imagefactory-console-0.5.0-4.20110824113238gitd9debef.el6.noarch
imagefactory-1.0.0rc1-1.el6.noarch
aeolus-configure-2.5.0-0.20111222093431gitd3ed726.el6.noarch

How reproducible:
always

Steps to Reproduce:
1. Create /etc/imagefactory/target_content.xml (see https://www.aeolusproject.org/redmine/projects/image-factory/wiki/Documentation)
2. create template for rhvem as follow (for instance)
<template>
  <name>Target_Specific_Packages_and_Repos_for_RHEL</name>
  <description>Target Specific Packages and Repos for RHEL</description>
  <os>
    <name>RHEL-6</name>
    <version>1</version>
    <arch>x86_64</arch>
    <install type="url">
      <url>http://download.devel.redhat.com/nightly/latest-RHEL6.1/6/Server/x86_64/os/</url>
    </install>
    <rootpw>redhat</rootpw>
  </os>
  <packages>
    <package name="rhev-fedora-generic-package"/>
  </packages>
</template>
3. imagefactory --debug --target rhevm --template template.tdl 
  
Actual results:
Exception caught in ImageFactory, then BUILDING FAILED

Expected results:
No Exception/error, or get some message about long Name in template

Additional info:
Maybe it's libvirtError, but I think template input should be at least somehow sanitize for this purpose. 
for Further info you might find http://hudson.rhq.lab.eng.bos.redhat.com:8080/hudson/view/DEV-CloudForms/job/ImageFactory-KocaTesting2/160/console